642010023154463 has 8 divisors (see below), whose sum is σ = 650806792860000. Its totient is φ = 633213310526208.

The previous prime is 642010023154361. The next prime is 642010023154469. The reversal of 642010023154463 is 364451320010246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 642010023154463 - 2¹² = 642010023150367 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 642010023154463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642010023154469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8631038 + ... + 36858036.

It is an arithmetic number, because the mean of its divisors is an integer number (81350849107500).

Almost surely, 2^{642010023154463} is an apocalyptic number.

642010023154463 is a deficient number, since it is larger than the sum of its proper divisors (8796769705537).

642010023154463 is a wasteful number, since it uses less digits than its factorization.

642010023154463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28538641.

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 642010023154463 in words is "six hundred forty-two trillion, ten billion, twenty-three million, one hundred fifty-four thousand, four hundred sixty-three".